package JavaSE.d1;
//对String和int的练习
public class Test7 {
    public static void main(String[] args) {
        String a="";
        int b=0;
        for (int i = 0; i < 5; i++) {
            b++;
            b+=b;
            a+=b;
        }

        System.out.println(a);
    }

}
